<template>
  <div>
    <el-row type="flex" justify="end">
      <el-select
        v-model="currentYear"
        style="width:100px;"
        size="small"
        @change="dateChange"
      >
        <el-option v-for="year in yearArr" :key="year" :label="year+' 年'" :value="year" />
      </el-select>
      <el-select
        v-model="currentMonth"
        style="width:80px;margin:0 5px;"
        size="small"
        @change="dateChange"
      >
        <el-option v-for="month in 12" :key="month" :label="month+' 月'" :value="month" />
      </el-select>
      <el-button size="small" @click="currentDate=new Date()">今天</el-button>
    </el-row>
    <el-calendar v-model="currentDate">
      <!-- <template v-slot:dateCell="{date,data}"> -->
      <template #dateCell="{date,data}" class="content">
        <div class="date-content">
          <span class="text"> {{ data.day | getDay }}</span>
          <span v-if="isWeek(date)" class="rest">休</span>
        </div>
      </template>
    </el-calendar>
  </div>
</template>

<script>

export default {
  filters: {
    getDay(oldDay) {
      return Number(oldDay.split('-')[2])
    }
  },
  data() {
    const currentDate = new Date()
    const currentMonth = currentDate.getMonth() + 1
    const currentYear = currentDate.getFullYear()
    const yearArr = []
    for (let index = 0; index < 11; index++) {
      yearArr.push(currentYear - 5 + index)
    }
    return {
      currentDate,
      currentMonth,
      currentYear,
      yearArr
    }
  },
  watch: {

    currentDate() {
      this.currentYear = this.currentDate.getFullYear()
      this.currentMonth = this.currentDate.getMonth() + 1
    }
  },
  methods: {

    isWeek(date) {
      // console.log(date)
      const nationalDay = ['10-1', '10-2', '10-3', '10-4', '10-5', '10-6', '10-7']
      const newDay = ['1-1']
      const vacation = [...nationalDay, ...newDay]
      const rule = date.getMonth() + 1 + '-' + date.getDate()
      // console.log(date.getDay())
      // console.log(date.getMonth() + 1 + '-' + date.getDate())
      return date.getDay() === 0 || date.getDay() === 6 || vacation.includes(rule)
    },

    dateChange() {
      const day = this.currentDate.getDate()
      // console.log(day)
      this.currentDate = new Date(this.currentYear + '-' + this.currentMonth + '-' + day)
    }
  }
}
</script>

<style lang="scss" scoped>
::v-deep .el-calendar-day {
  height:  auto;
 }
::v-deep .el-calendar-table__row td,::v-deep .el-calendar-table tr td:first-child,  ::v-deep .el-calendar-table__row td.prev{
  border:none;
 }
.date-content {
  height: 40px;
  text-align: center;
  line-height: 40px;
  font-size: 14px;
}
.date-content .rest {
  color: #fff;
  border-radius: 50%;
  background: rgb(250, 124, 77);
  width: 20px;
  height: 20px;
  line-height: 20px;
  display: inline-block;
  font-size: 12px;
  margin-left: 10px;
}
.date-content .text{
  width: 20px;
  height: 20px;
  line-height: 20px;
 display: inline-block;

}
::v-deep .el-calendar thead th{
  &:nth-child(6),&:nth-child(7){
    color: red;
    font-weight:bold
  }
}
::v-deep .el-calendar-table td.is-selected .text{
   background: #409eff;
   color: #fff;
   border-radius: 50%;
 }
::v-deep .el-calendar__header {
   display: none
 }
</style>
